The asymmetrical categories of negation in Bumthang

Less inflectional categories are found in negated clauses than are found in affirmative clauses in Bumthang, a Tibeto-Burman language of Bhutan.

Polarity, case marking and aspect in Bumthang, a central Bhutanese language

We find that negated clauses in Bumthang contrast with their positive counterparts in terms of both case marking on transitive subjects and on aspect marking on verbs.